阅读理解。
Fujitsu, a Japanese technology company, has created a system capable of simultaneously (同时地)
charging multiple portable electronic devices such as mobile phones, digital cameras and laptop computers
without the need for cable connections.
Electric cars users may also eventually be able to charge their vehicles wirelessly using the same
technology, said the company, which developed a sample system at Osaka Prefecture University. Claiming
to be the world's first of its kind, the technology works on the basis of the transmission of electricity using
magnetic fields between the charger and the electronic device.
The system enables wireless charging at distances of up to several meters. With the final aim of installing
public "charging spots" on the streets in order to enable easy charging around the clock, scientists at Fujitsu
Labs are planning to commercially sell products incorporating the new wireless charging system as early as
2012 but have not yet decided how much they would cost.
"This technology paves the way to integrating compact wireless charging functions into mobile phones
and enabling multiple portable devices to be charged simultaneously without any restrictions on their position
relating to the charger," the company said in a statement.
Mobile phone users in Japan can currently charge their batteries using the disposable portable plug-in
battery-operated device, available at most train stations and convenience stores. However, phone companies
warn long time use of it can damage the phones.
The company added, "We are also looking at applying the results of this work to fields other than portable
electronics, including power transmission between circuit boards (电路板) or computer chips, and providing
mobile charging systems for electric cars."
1. This passage is most probably taken from _____.
A. an instructive brochure
B. readers' feedback
C. a news report
D. a brief introduction
2. Which of the following can best describe the striking feature of this system?
A. It enables wireless charging at distances of up to several miles
B. It enables you to charge your device very easily beside the clock
C. It is wireless and makes multiple charging at the same time
D. It can be bought at any formal supermarkets in the city
3. The underlined word "it" in paragraph 5 refers to _____.
A. the device
B. the system
C. the phone
D. the battery
4. The best title for the text would be _____.
A. Fujitsu, a famous Japanese company
B. power transmission between circuit boards
C. new wireless charging system developed
D. mobile phones damaged by charging
